5.5

CVE-2026-46305: staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc

Modified
AliasesUBUNTU-CVE-2026-46305DEBIAN-CVE-2026-46305
Published 08-06-2026Last modified 14-09-2026

Vulnerability summary

CVE-2026-46305 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.11%
0%100%
Low · -0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 12 · Related 12
OPENSUSE-SU-2026:11014-1USN-8566-1USN-8568-1USN-8569-1USN-8593-1USN-8603-1

Timeline

  1. 08-06-2026
    PublishedVulnerability first disclosed.
  2. 14-09-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc The return value of kzalloc_flex() is used without ensuring that the allocation succeeded, and the pointer is dereferenced unconditionally. Guard the access to the allocated structure to avoid a potential NULL pointer dereference if the allocation fails.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.11%

Chance of exploitation in the next 30 days

Percentile

1%

Versus all other CVEs

30-day change

Decrease -0.05 pp

From 0.16% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu106 products
  • linux< 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 368f19a5ed15f396db4ec2182c1311a7fa4f993b, < 7d4024037ee309a8f0cb86b4093d59da0e135db8 | ≥ 980cd426a25747daf8ed25e2a1904b2d26ffbb3d, < 0a5f411becfb7c57aa89827213d31ef23a03d75a | ≥ 980cd426a25747daf8ed25e2a1904b2d26ffbb3d, < bc851db06045a40c18233dd76ef0562d7f8bb6db | 7.0
  • linux_kernel≥ 7.0, < 7.0.7 | 7.1:rc1 | 7.1:rc2
Debian1 product
  • linux< 7.0.7-1

3 vendors · 109 products

References

18 links
Show all 18 references